Integration of Smart Grids and Renewables Achievements in Sweden

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1 Integration of Smart Grids and Renewables Achievements in Sweden Dr Magnus Olofsson ISGAN Workshop Yokohama, 8 March 2016

2 In Summary Governmental Actions on Smart Grid Four cases: Smart Grid Gotland Increased Grid Reliability and Enabling Wind Dynamic Line Rating Enabling Wind Ngenic Tune Flexible Ground Heat Pumps FerroAmp Enabling Solar Based Micro Grids 2

3 The Swedish electricity market Electricity supply Hydro power Wind power Nuclear Other thermal power Total Export 2015 prel. 75 TWh 16,5 TWh 54 TWh 13,5 TWh 159 TWh 22,5 TWh 3

4 Swedish Coordination Council for Smart grid Appointed by the Swedish Government The Council: 15 members with key positions within industry, academia and governmental authorities Final report delivered in December 2014 A national action plan for smart grid A national knowledge platform for smart grid established Cooperation, knowledge transfer and discussions among stakeholders 4

5 The way forward The government has appointed a Energy Commission to agree on a future energy policy proposal to be delivered A national Forum for smart grid starting Q Mission for the Forum Monitor implementation of the action plan Identify need for supplementary measures Coordinate activities among authorities Promote dialogue between actors involved Manage and develop the knowledge platform 5

6 Smart Grid Gotland Smart Grid Gotland

7 General Objectives A research, development, demonstration and pilot project with the ambition to upgrade an existing rural distribution system, on a deregulated market, to a modern smart grid. Increase hosting capacity for renewable power in the distribution grid with 5 % by use of load shift from active customers Improve power quality for customers by a decrease of the number and duration of power outages with 20 % Attract 2000 residential and 30 business customers to become active on the electricity market 7

8 Security of Supply Rural Zone concept with centralized intelligence 10 kv station, 3 feeders Energized Deenergized OVR Trip Fault Information in Relay Protection sent to SCADA/DMS Fault isolated to smallest possible grid section The operator starts Restoration and Switching Analysis, RSA, which will initiate a Load Flow Analysis Suggested action: Connect OVR 10 kv Feeder 8

9 Dynamic Line Rating Öland 9

10 Background 48 MW off shore wind at Öland Existing 50 kv-network allowed maximum 30 MW installation due to thermal limitation Also 130 kv cable to mainland has limitations Reinforcement overhead lines MSEK New cable to mainland ~ 200 MSEK Dynamic Line Rating was an alternative! Supervised overhead lines 10

11 Dynamic Line Rating Öland Kårehamn wind power plant, 48 MW Föra If the temperature on the supervised lines rises over accepted level, the generation will be curtailed. Cable to main land Installation of dynamic line rating (temperature supervision) In Köping sensors, and one weather station, are placed. In Högsrum, equipment are installed for communication on the power line. In Linsänkan sensors, and one weather station, are placed. From the PLC in the stations, temperature signals are sent to a PLC in Föra. The PLC in Föra are calculating which of the two units that is most critical and is after that sending a signal to the wind power plant. 11

12 A smart THERMOSTAT 12

13 Three Wishes Efficient use of energy (kwh) Enable renewables flexible use Increase customer satisfaction Better comfort, better control, automatic Lower cost Contribute to a better world 13

14 Cloud service for Demand Side Load Balancing Grid Load (local, regional, national) Production forecast, Import/Export Building dynamics Weather forecast Day-ahead market Intraday markets Balance market Power reserve 14

15 Results of field trial January , 4-5 PM: Local peak load 66 MW Average outdoor temperature: 17 C 100 homes participated All heating turned off during the hour Only water based heat pumps participated Average indoor temperature drop: 0,2 C ~ 200 kw power load reduction No returning load peak Value on spot and balancing market ~ 600 SEK Value on purchased power for local grid: SEK Potential in local grid 10 MW Value 1,8 MSEK/year 15

16 Solar and storage solutions 16

17 Modular PV + storage solution 17

18 The next killer app The solar market is massive, will generate $5 trillion in revenue by 2030 and solar plus storage is the next killer app. * Deutsche Bank - PV Market Outlook 2015, Vishal Shah referenced in RenewEconomy, march

19 Thanks! Magnus Olofsson